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2023, Vol. 44(19): 79-87    DOI: 10.13884/j.1003-3807hxjy.2022100192
Junior High School Chemistry Unit Teaching Led by Big Ideas: Composition and Structure of Substances
LI Xiao-Jing1, AI Lu2**
1. Changzhou Qinye Middle School, Changzhou 213016, China;
2. Changzhou Zhengheng Middle School, Changzhou 213000, China
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